/*
 * RED5 Open Source Media Server - https://github.com/Red5/
 * 
 * Copyright 2006-2016 by respective authors (see below). All rights reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.red5.server.api.statistics;

/**
 * Statistical informations about a stream that is subscribed by a client.
 * 
 * @author The Red5 Project
 * @author Joachim Bauch (jojo@struktur.de)
 */
public interface IPlaylistSubscriberStreamStatistics extends IStreamStatistics {

    /**
     * Return total number of bytes sent to the client from this stream.
     * 
     * @return number of bytes
     */
    public long getBytesSent();

    /**
     * Return the buffer duration as requested by the client.
     * 
     * @return the buffer duration in milliseconds
     */
    public int getClientBufferDuration();

    /**
     * Return estimated fill ratio of the client buffer.
     * 
     * @return fill ratio in percent
     */
    public double getEstimatedBufferFill();

}
